Pure.Line Filter Elements
The right filtration solution for every hydraulic application.
Optimal fluid management is the basis for high machine availability, long service life, and economical processes. With Pure.Line Filter Elements, Hengst offers a comprehensive portfolio of high-quality hydraulic filter elements for a wide range of applications and operating conditions.
Whether you need maximum reserve power for critical systems or economically optimized filtration for standard applications – Pure.Line provides the technically and economically suitable solution for almost every hydraulic application.
With the two perfectly aligned product lines Pure.Power Filter Elements and Pure.Function Filter Elements, Hengst combines top filtration expertise, reliable oil purity, and proven quality. This way, users receive exactly the filtration solution their application requires – without overdimensioning and without compromises on safety or reliability.
Sustainability
Efficient filtration means more than clean oil. It helps save energy, conserve resources, and sustainably extend the service life of machines and components.
With innovative filtration technology, intelligent use of materials, and an environmentally conscious product design, Hengst pursues a clear objective: maximum efficiency with the greatest possible environmental responsibility.
Instead of unnecessary over-dimensioning, Pure.Line Filter Elements relies on application-appropriate filtration solutions. This reduces material use, energy consumption, and CO2 emissions – while maintaining high oil cleanliness, reliability, and product quality.
Cost-Efficiency
Every hydraulic system has different filtration requirements. Therefore, Pure.Line Filter Elements offers the economically appropriate solution for every application.
Pure.Power Filter Elements: maximizes uptime with its exceptionally high contaminant-holding capacity, reducing maintenance effort and unplanned machine downtime.
Pure.Function Filter Elements: was specifically designed for applications with defined maintenance intervals. The balanced combination of filtration performance, contaminant-holding capacity, and low differential pressure enables energy-efficient and economical filtration with low total cost of ownership (TCO).
The result: maximum cost-effectiveness through technically tailored filtration—precisely aligned with your application’s requirements.
Variety
Hydraulic applications are as diverse as the requirements of their operators. Therefore, Pure.Line Filter Elements covers a broad spectrum of stationary and mobile hydraulic applications as well as lubrication oil systems. With broad portfolio coverage, excellent interchangeability, and a continuously expanding product range, Hengst offers suitable solutions for numerous OEM and aftermarket components. Whether for industrial hydraulics, mobile machinery, or spare-parts business, with Pure.Line Filter Elements you’ll find the right filtration solution.
Pure.Line Filter Elements – Your benefits at a glance
• Filtration solutions for virtually any hydraulic application
• Two product ranges optimally tailored to different requirements
• Reliable oil purity and high levels of protection for hydraulic systems
• Maximum service life and the highest performance reserves with Pure.Power Filter Elements
• Cost-effective filtration for defined maintenance intervals with Pure.Function Filter Elements
• Global availability and short lead times
• Proven Hengst quality for industrial and mobile hydraulics
Which solution is right for your application?
The choice between Pure.Power Filter Elements and Pure.Function Filter Elements is not necessarily determined by the industry, but by the requirements of your application.
| Pure.Power Filter Elements | Pure.Function Filter Elements |
| - Maximum performance | - Cost-effective filtration |
| - Critical applications | - Standard applications |
| - Maximum service life | - Low operating costs |
| - Broad fluid compatibility | - Mineral oil |
| - Maximum safety | - Best value for money |

Benefits
Pure.Line Filter Elements – Your customer benefits at a glance:Filtration solutions for virtually any hydraulic application
Two product ranges optimally tailored to different requirements
Reliable oil purity and high levels of protection for hydraulic systems
Maximum service life and the highest performance reserves with Pure.Power Filter Elements
Cost-effective filtration for defined maintenance intervals with Pure.Function Filter Elements
Global availability and short lead times
Proven Hengst quality for industrial and mobile hydraulics
Product variants

Pure.Power Filter Elements
Maximum performance. Maximum safety.
Pure.Power Filter Elements are the premium product range within the Pure.Line and has been specially developed for demanding hydraulic applications where the focus is on maximum system availability and the highest level of operational safety.
The high-performance 6-layer media construction, featuring 3 staggered filtration-active glass fibre layers, combines the highest retention rates with an exceptionally high contaminant holding capacity. This ensures long service life, maximum oil purity and the highest performance reserves, even under dynamic operating conditions.
The electrically dissipative fleece (ESD) integrated as standard, the high mechanical stability and the broad range of fluid compatibility make Pure.Power Filter Elements the first choice for critical applications with the most stringent requirements for safety and reliability.
Your benefits
• Maximum filtration performance
• Highest contaminant holding capacity
• Very long service life
• Maximum plant availability
• Maximum operational reliability
• ESD protection integrated as standard
• Suitable for mineral oils and numerous special fluids
Typical applications
• Wind energy
• Mining
• Steel industry
• Marine
• Paper industry
• Tunnel boring machines
• High-performance presses
• Critical industrial hydraulics

Pure.Function Filter Elements
Efficient filtration. Precisely engineered.
Pure.Function Filter Elements are the cost-effective product range within the Pure.Line and has been specially developed for standard hydraulic applications with predictable maintenance intervals.
The multi-layer glass fibre filter medium ensures oil purity in accordance with ISO 16889 and offers a good balance between filtration performance, contaminant holding capacity and low differential pressure. This reduces energy losses and lowers operating costs in the long term.
Thanks to its high technical interchangeability, Pure.Function Filter Elements are ideally suited as a cost-effective replacement for numerous OEM and competitor elements. Users benefit from proven Hengst quality, short lead times and an attractive total cost of ownership.
Your benefits
• Cost-effective filtration for standard applications
• Oil purity in line with standards
• Low differential pressure for high energy efficiency
• Service life in line with market standards
• Attractive total cost of ownership
• High technical interchangeability
• Global availability
• Proven Hengst quality
Typical applications
• Machine tools
• Injection moulding machines
• Plastics processing
• Packaging technology
• Conveyor technology
• Agriculture
• Mobile hydraulics
• General mechanical engineering
Characteristic values
| Characteristic values | Pure.Power Filter Elements | Pure.Function Filter Elements |
| Filter fineness DIN24550 | 1; 3; 5; 10; 20 µm | 6; 10; 20 µm |
| Filtration performance ISO16889 | ß10 > 200 | ß10 > 200 |
| Dirt holding capacity ISO16889 | +++ | + |
| Differential pressure ISO3968 | + | ++ |
| Filter medium | 3x glass fiber (single layer) | 1x glass fiber (duo layer) |
| Antistatic as standard | yes | no |
| HFC compatible | yes | no |
| Service life* | Maximised | Standard |
| Pulsation stability | ++ | +++ |
+ good / ++ very good / +++ excellent
*The filter service life depends on various influencing factors and may vary












